The number of swine flu cases in the United States topped 10,000 on Monday and the virus spread to all 50 states, as Alaska reported its first (A)H1N1 infection, an official update showed.

The number of swine flu cases in the United States topped 10,000 on Monday and the virus spread to all 50 states, as Alaska reported its first (A)H1N1 infection, an official update showed.

The Centers for Disease Control and Prevention (CDC) reported 10,053 probable or confirmed cases of swine flu in the 50 states and the District of Columbia, up from nearly 9,000 on Friday.

The CDC also linked two more deaths to the (A)H1N1 influenza virus, bringing the official death toll for the outbreak to 17, which does not include the first death from the disease reported by California state officials today.

The victim, a middle-aged woman with severe respiratory disease, died late last month, according to Los Angeles County Health Officer Jonathan Fielding.

The United States has the most cases of swine flu of any of more than 50 countries around the world where infections with the virus have been reported, although Mexico, where the new strain of influenza was first reported in April, has the highest death toll, at 97.